摘要
用湖南省常宁县水口山铅锌矿出产的铅锌原矿石制备了混凝土粗骨料,按混凝土粗骨料总质量的20%、40%、60%、80%、100%掺入卵石骨料中,制备了铅锌原矿石骨料混凝土.试验表明铅锌原矿石骨料混凝土拌合物的坍落度随原矿石骨料掺入比例的增加而降低,比例超过60%时,坍落度降低明显.混凝土抗压强度随原矿石骨料掺入比例的增加而降低.原矿石骨料掺入比例越高,混凝土对γ射线的吸收系数μ越大,对γ射线的屏蔽能力越好.
Lead-zinc ore raw aggregates were produced from Shuikoushan lead-zinc mine in Changning county,Hunan province.Lead-zinc ore aggregates concretes were prepared with the ratio of raw ore aggregates to total aggretes in 20%,40%,60%,80%,100%. Results showed that slumps of raw lead-zinc ore concrete with ratio of 20%,40% were basically the same as that of pebbles concrete. Slumps decreased gradually with the ratio of 60%,80%and 100%.The compressive strength of concrete decreased with the increasing of raw oreaggregates.The higher ratio of raw ore aggregates,the greater absorption coefficient to γrays,and the better shielding ability of γ rays.
作者
董腾
卓超
丁科
方耀楚
何磊
DONG Teng;ZHUO Chao;DING Ke;FANG Yaochu;HE Lei(Hunan Province Key Laboratory of Engineering Rheology,Central South University ofForestry and Technology,Changsha,Hunan 410004,China;School of Civil Engineering,University of South China,Hengyang,Hunan 421001 China;College of Materials Scienceand Engineering,Chongqing University,Chongqing 400044 China)
出处
《南华大学学报（自然科学版）》
2018年第3期38-42,共5页
Journal of University of South China：Science and Technology
基金
湖南省重点实验室开放课题项目(14HNKLER05)
湖南省教育厅项目(16C1360)
南华大学研究生科技创新课题项目(2016XCX01)
湖南省自然科学基金项目(2018JJ3438)
关键词
铅锌原矿
粗骨料
防辐射混凝土
Γ射线
lead-zinc ore
raw aggregate
radiation shielding concrete
γ rays
